Critical trends assessment Program 2003-04 report
Illinois. Dept. of Energy and Natural Resources.
Critical Trends Assessment Project.
Illinois. Natural History Survey Division.
[Illinois] :Illinois Dept. of Natural Resources, Office of Realty and Environmental Palnning :Dec. 2004
Contents: Introduction -- Terrestrial ecosystems: The relationship between forest maturity, forest diversity, and plant distributions: will wildflowers return to disturbed forests? -- Maple takeover: a differen
Critical Trends Assessment Project
Natural resources surveys
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